John (Garret Dillahunt) is one of a slew of new characters joining Season 4. While not much is known about him at this point, he's definitely rocking a classic Clint Eastwood vibe.
Althea: Your name? Morgan: Morgan Jones. Althea: Where did you come from? Morgan: Atlanta and Virginia. Althea: How'd you get here. Morgan: I ran ... and I walked, drove ... and I walked again.